This year’s climate camp turns out to be on Blackheath. They’ve been pouring onto the site for the last two hours after the secret location was finally disclosed. Reading Twitter gives you a great sense of the infectious drama of the moment, and why it has such momentum.

Why Blackheath? Proximity to the city? Joan Ruddock’s constituency – Parliamentary Under-Secretary in the Department of Climate Change? Or, as the rapidly updated Wikipedia entry for Blackheath suggests, because this was the site of the Peasant’s Revolt. Let’s hope it’s not the latter as that particular popular movement was spectacularly sold down the river.